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Black widow spiders typically prey on a variety of insects; however, they also consume woodlice, diplopods, chilopods, and other arachnids. [18] When the prey is entangled by the web, Latrodectus mactans quickly comes out of its retreat, wraps the prey securely in its strong web, then bites and envenoms its prey.
Latrodectus is a broadly distributed genus of spiders with several species that are commonly known as the true widows.This group is composed of those often loosely called black widow spiders, brown widow spiders, and similar spiders.
Latrodectus hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be red, yellow, and on rare occasions, white.
How to Identify a Black Widow Spider. There's probably a specific image that comes to mind when you picture a black widow spider: A large, shiny, black spider with a red hourglass on its belly ...
Since the black widow spends most of its time on its web, it does not search for prey; and as long as it is undisturbed, it should not bite you. The spiders are defensive, rather than aggressive.
Latrodectus mirabilis, sometimes (but rarely) known as black widow is a spider species that is native to most of South America in the genus Latrodectus of the family Theridiidae. Description [ edit ]
The redback spider (Latrodectus hasselti), also known as the Australian black widow, [2] [3] [4] is a species of highly venomous spider believed to originate in Australia but now, Southeast Asia and New Zealand, it has also been found in packing crates in the United States with colonies elsewhere outside Australia. [5]
When a black widow spider bites, it typically causes a painful pinprick sensation. The site of the bite then swells slightly and forms a red rash. You might see two fang marks inside the bite area ...
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